Improvement in glassware and metal stem-connections



. KNECHT & ADAMS.

V Glassware and Metal Stem Connection.

No. 110,049. I Patented Dec. 13, 1870.- r

UNITED STATES PATENT OFFICE.

I CHARLES L. KNEOHT, OF ST. CLAIR, AND THOMAS ADAMS, OF STOW TOWVNSHIP, ALLEGHENY COUNTY, PENNSYLVANIA.

IMPROVEMENT IN GLASSWARE AND METALSTEM-CONNECTIONS.

Specification forming part of Letters Patent No. l I0,0J9, dated December 13, 1870.

To aZZ whom it may concern Be it known that we, CHARLES L. Knnoi-rr, of St. Clair borough, and THOMAS Animus, of Stow township, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Glassware and Metal Stem-Connections; and we do hereby declare-the following to be a full, clear, and exact description thereof, reference being had to the accompanying drawings, making apart of this specification, in which- Figure 1 is a side elevation of the threaded stems or pegs of a glass lamp bowl and foot united by aspiral wire, and illustrative of our improvement; and Fig. 2 is a like elevation of the same devices covered by a thimble or socket.

Our improvement relates to an improved connection for uniting the stems of pegs of articles of metal orglass. It is applicable to uniting the bowl and foot of lamps of either glass or metal, or partly glass and partly metal,

I to jointing together different parts of-brackets, and to similar uses in the arts.

To enable others skilled in the art to make and use our improvement, we will proceed to describe its construction and manner of use, with particular reference to its application to uniting the bowls and feet of glass lamps.

The base of a bowl may be considered as represented at a, and the upper or stem end of a lamp-foot at b. These terminate at eontiguous ends in pegsc, which are threaded, as shown at s, with right-hand screw-threads.

' \Ve then screw these pegs 0 into the opposite ends of a wire spiral, (l, of suitable length and diameter, so that the coils of the spiral shall screw in between the threads of the pegs. The

wire of the spiral (I should have sufficient rigidity to make a connection of the desired stiffness, unless, as we prefer to do, we cover both pegs and spiral with a thimble or socket, e, which may be made of metal and of sufficient diameter to slip neatly on. Then, with a moderately stiff wire and with the ends of the socket 6 bearing against the bowl and foot above and below, or beads f formed thereon, a sufficiently firm connection will be secured.

The advantages of our improvement are obvious. It can be made at small expense, is simple, durable, cheap, and, when broken, as cheaply repaired.

I11 connection with metals, it is obvious that the wire spiral described may be soldered or otherwise rigidly fastened to one part and a threaded stem on the other part screwed into it, and such modification we hereby include as a part of our invention hence What we claim herein, and desire to secure by Letters Patent, is

1. As a means of uniting together end to end two parts of a glass or metal manufacture, a wire spiral, d, rigidly or removably attached to the end of one part, in combination'with a threaded stem or peg on the contiguous end of the other part, substantially as described.

2. The arrangement of wire spiral d, threaded pegs c, and Socket 6, substantially as described.

In testimony whereof we, the said CHARLES L. Knnorrr and Tl-roMAs ADAMS, have here unto set our hands.

CHARLES LOUIS KNECHT. THOS. ADAMS. \Vitnesses JOHN GLENN, THos. B. KERR. 

